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Finding the Fourth Proportional to 71,734.76, 107,619.42 and 22,486.76

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Solution

The fourth proportional to 71,734.76, 107,619.42 and 22,486.76 is: 33,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,734.76 : 107,619.42 = 22,486.76 : x
  2. Step 2: Convert to fraction form
    71,734.76/107,619.42 = 22,486.76/x
  3. Step 3: Cross multiply
    71,734.76x = 107,619.42 × 22,486.76
  4. Step 4: Simplify right side
    71,734.76x = 2,420,012,068.88
  5. Step 5: Solve for x
    x = 2,420,012,068.88/71,734.76
  6. Step 6: Final answer
    x = 33,735.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.